I'm not sure if this is right, but it's how I did it.
F=mg, F=40 * 9.8 = 392 N
W=Fd, W=392 * 1.5 = 588 J
Use the formula for potential energy: PE = mgh (mass x gravity x height). Since you are using SI units, use 9.8 for gravity.
78*6*9.8 N = 4586.4 N
Work = (force) x (distance) = (10) x (4) = 40 joules
29
2.6667 litres
anser
That depends on how much sand is in it. You should be more specific to what kind of sandbag it is.
Gravity does not lift. The force is doing the work by lifting the riders. When the riders come down from the 60 meter height, then gravity will be at work.
Work = (force) x (distance) (300 poundforce) x (60-ft) = 18,000 foot-pounds
Just use the formula for gravitational potential energy:GPE = mgh Where m is the mass, g the gravity (around 9.8, in SI units), and h the height.
Use the formula for potential energy: PE = mgh (mass x gravity x height). Since you are using SI units, use 9.8 for gravity.
Height is a subjective measure and can vary greatly among individuals. In some populations, a height of 159cm may be considered slightly below average for a 19-year-old girl, while in others it may be within the normal range. It's essential to consider individual growth patterns and overall health rather than just focusing on height alone.
It honestly depends on the person, there is no set lifting weight for ages, or height, or weight for that matter.
The amount of work done is w=mgh.
When you are going through school and training there can be quite a bit of lifting, especially when you are training in a hospital, geriatric or rehab setting. Some of these patients in these settings cannot move or transfer on their own and you need to lift or move them in order to deliver the physical therapy treatments. Once you are done with schooling, if you work in a setting where the patients are mobile then there is not as much lifting.
There is no specific age or height, i started when i was 13 and i was 5'11" and i could bench 115 on my first day.
Too much of anything is bad for you, and that includes exercise. If you're lifting more than just a few hours a week, you're probably overdoing it and yes, it can stunt your growth because your body will put all of its energy into growing muscles instead of height.